Gas-heating furnace



(No Model.) 2 Sheets-Sheet 1.

J. N.. MAGGONIGLB; GAS HEATING FURNAGB.

No. 346,297. Patented July 27, 1886.

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GAS HEATING FURNAGE.

No. 346,297. Patented July 27, 1886.

To aZZ whom it may concern:

UNITED STATES PATENT OFFICE.

JOHN N. MACGONIGLE, OF OIL CITY, PENNSYLVANIA'.

GAS-HEATING FURNACE.

PECI-ICATION formng'part of Letters Patent No. 346,297, dated July 27l 1886.

Application filed December 4, 1884. Renewed April 3, lSSG. Serial No. 197,753.

Be it known that I, JOHN N. MACGONIGLE, a citizen of the United States, residing at Oil City, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Heating Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to provide a furnace wherein gas, either natural or manufaetured, can be economieall y used for heating purposes.

Figure l is a vertical longitudinal section of my improved furnace having` a single row of drums. Fig. 2 is a plan view, the top of the casing being removed, the inlet-pipe b8 being shown uncovered, and the drums arranged in two parallel rows. Figs. 3, 4, 5, and 6 are plans of different shapes of drums.

A represents a furnace-casing, which may be either of brick, metal, or any other material, and of any desired shape and capacity. Cold air is admitted into the interior in any suitable way. Such air comes into contact with the heated drums B', B2, B3, B4, B5, B, and BT, and aseends and escapes through the apertures a ci. The gas to be consumed is introduced through the gas-pipe C tothe burner D, which may be of circular form. rIhe burner should be constructed on the principle of the Bunsen burnerthat is to say, that atmospheric air should be mixed with the gas before consumption. 'Ihe gas then burns with a pure flame without smoke, and no draft is needed to secure perfect combustion.

|Ihe burner D is placed in the combustionchamber E. When the gas is ignited,the walls or sides of the combustion-chamber are heated, and the air surrounding them is warmed. The products of combustion ascend to the small drum B,and are conducted by the pipe b to the bottom of the drum B2. In that drum they ascend to the top, and in their progress give up a portion of their heat throughthe walls of the drum to the air outside. As they are thus cooled, they are continually followed by heat-waves, and the first or cooled portions descend in the drum and then escape through .the outletflue Zr".

(No model.)

This process is all the heat units from the current of heated gases may be employed.

In Fig. l, which shows the drums arranged in a single line, the drum B3 communicates through horizontal pipe b with drum B4, and the latter discharges through similar pipe, L8, into the outlet-flue Zi.

In Fig. 2 the pipe b2 extends across from drum B, which is in one row, to drum B3, which is in the other. Another pipe, b, eX- tends from drinn B to drum BL, which is in the same row with it. Bl is silnilarly connected by pipe bi to drum B, the latter being in the other row. The remaining drum, B, is connected by pipes b and b7 to drums,]35 and Bi'espectively. lipe b leads from drum bi, to All the above connections with the drums are made near their lower ends.

rlhe drums and combustion -ehamber and connecting-pipes should be made of material that will radiate heat freely, and on this account sheet-iron is to be preferred.

rlhe drums may be arranged in asingle row, as shown in Fig. l, or in two rows, as shown in Fig. 2. In either case the last drinn of the series discharges into the outlet-flue b.

rIhe drums may be placed quite near each other; but between their tops and the upper casing of the furnace there should be a chamber, F, of suitable size, where the air, which will be warmed unequally by the different drums, may be thoroughly mixed together and delivered through the registers a e2 of uniform temperature.

The drums may be made of any desired form or shape, either in a series of gradually-increasing sizes, like Fig. 4, or in the frustum of an inverted conc, like Fig. 5, or with a comparatively large upper portion,like Fig. 6, or a plain cylinder, like Fig. 3.

A separating-wall or partial diaphragm may be inserted in the drums, as shown at G in Fig. 3, so as to direct the heated current upward, and prevent its direct passage out of the exit-pipe.

As there willbe some water condensed in the heaters, a drip-pipe, H, is provided, whereby the drums may be drained.

In order to preventl the products of the combustion of the gases from escaping into theinterior of the furnace7 the coinbustiolrchamber must be so constructed that no such escape can take place.

What I claim as my invention isl. The burner D and combustion-chamber E, in combination with a drum, B, raised thereon, a pipe connecting said drum with the lower part of a second drum, B, a series of additional drums and connecting-pipes, the

lutter making communication between the lower parts of the drums, an outlet from thelow` er part of the last drum, and the pipe H and its branches, substantially as sct forth.

2. The pipe H and its branches,rrangedin the flooring, in combination with a. series of drums, a burner and oombustionohamber for supplying them with products of combustion, and inclosing-cusing .and an outlet-fine, Said branches oflpipe H communicating with the bottoms of said drums, respectively, substn tially as set forth.

In testimony whereof I aiix my signature in presence of two witnesses.

`JN0. N. MACGONIGLE. IVitnessesx' F. WV. HAYs, J AMES C. BoYoE. 

